Air quality index [µg/m3]:
excellent ≤ 20
good ≤ 60
lightly polluted ≤ 100
moderately polluted ≤ 140
heavily polluted ≤ 200
severely polluted > 200
PM 2.5
[µg/m3]
PM 10
HOUR OPOLSKA ST. ROOF (BEFORE FILTERS)  AIR SUPPLIED TO OFFICES
060077lightly pollutedexcellent121excellent
050076lightly pollutedexcellent111excellent
040072lightly pollutedexcellent111excellent
030072lightly pollutedexcellent101excellent
020073lightly pollutedexcellent101excellent
010067lightly pollutedexcellent111excellent
000074lightly pollutedexcellent101excellent
230067lightly pollutedexcellent111excellent
220066lightly pollutedexcellent111excellent
210056goodexcellent91excellent
200044goodexcellent91excellent
190036goodexcellent71excellent
180046goodexcellent101excellent
170048goodexcellent91excellent
160048goodexcellent121excellent
150062lightly pollutedexcellent141excellent
140056goodexcellent131excellent
130057goodexcellent151excellent
120093lightly pollutedexcellent171excellent
110097lightly pollutedgood221excellent
100095lightly pollutedgood241excellent
0900119moderately pollutedgood211excellent
0800135moderately pollutedgood222excellent
0700193heavily pollutedgood301excellent